Alfa Laval ALT-SB-15, Инструкция по эксплуатации

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8 Appendix
All position numbers are according to drawings and part lists in chapter 7 Parts list/Service kits
3. Assembl
y
instructions, storage,
preparation, installation
www.nord.com B1000-GB-0713
-15-
Figure 3-10: Attaching the torque support on bevel gear and worm gear units Tighten the
bolts
on the
torque
support
to the correct
torque
(see
Section 6.2 for
torque values)
and secure to prevent loosening (e.g. Loctite 242, Loxeal 54-03).
3.8
Fitting shrink discs
Figure 3-11: Hollow shaft with shrink disc
Attention!
Do not tighten bolts if the solid shaft is not inserted!
Assembly
sequence:
1.
Remove any transport securing devices.
2.
Loosen
but do not remove tightening bolt and tighten
gently by hand
until there is no
play
between the flanges and the inner ring.
Shrink disc ty
pe, Mat. No.
and torque details for tensioning scre
w
s
Tensioning flanges
Solid shaft of machine
Shaft and and holl
o
w
shaft bore
Tensioning scre
w
s DIN 931 (933) -10.9
GREASE FREE!
The shrink discs are suplied by the manufacturer ready for fitting. They
must not
be dismantled prior to fitting.
Hollo
w
shaft of gear unit
Double half-slotted inner ring
Alway
s
support torque support on both sides
!
3. Assembl
y
instructions, storage,
preparation, installation
-16- B1000-GB-0713
www.nord.com
3.
Slide the shrink
disc
onto
the hollow
shaft
unt
il the outer clamping
flange is flush with t
h
e
hollow shaft. The
shrink
disc is easier to slide on if the bore
of the inner
ring is lightly
greased.
4.
Prior to mounting, grease the solid shaft only in the area which
will later come into contact
with the bronze bush in the hollow
shaft
of the gear
unit. Do not grease the bronze
bush, in
order to prevent grease penetrating the area around the shrink connection.
5. The
hollow
shaft
of
the
gear
unit
must
be
completely
de-greased
and
completely
free of grease.
6. In
the
area
of
the
shrink
connection
the
soli
d shaft of the
machine
must be
degreased
and
completely
free of greas
e
.
7.
Insert the solid
shaft of the machine into the hollow
shaft
so as
to completely
fill the area
around the shrink connection.
8.
Position the clamping flange by gently tightening the bolts.
9.
Tighten the bolts
successively
in
a clockwise
direction by several turns –
not crosswise –
with approx.
¼ rotation per turn. Tighten the
bolts with a torque
wrench to the torque
indicated on the shrink disc.
10.
When the
tensioning
bolts have been
tightened,
there must
be an
even gap between t
h
e
clamping flanges. If this is not the case, the gear unit must be dismantled and the shrink disc connection checked for correct fit.
Danger!
Risk of injur
y
from incorrect mounting and dismantling of the shrink disc.
Dismantling sequence:
1. Loosen
the
bolts
successively
in
a
clockwise
direction
by
several
turns
with
approx.
¼
rotation per turn. Do not remove the bolts from their thread.
2.
Loosen the clamping flanges from the cone of the inner ring.
3.
Remove the gear unit from the solid shaft of the machine.
3.9
Fitting the covers
Danger!
Shrink discs and exposed rotating shaft ends require contact guards in order to prev
ent
injuries.
A
cover (Option
H and
Option H66) can
b
e
us
ed a
s
a
guard. If
this does not
achieve
sufficient protection
against contact according
to the required
protection type, the machinery
and plant constructor must ensure this be means of special attached components.
All fixing screws must be used and tightened to the correct torque. (See Section 6.2 for torque values) For covers with option H66, press in the new / new condition closing cap by tapping it lightly with a hammer.
57